they come out to vote. in the end, it doesn't matter how many support mitt romney and support barack obama. the only thing that ends up mattering is how many people come out successfully manage to cast a vote support mitt romney and support barack obama. jest an enormous amount of energy is turning out people who have decided they prefer one or the other but might not make their way to the polls. >> 36 days until the election. i did want to show these numbers from your piece. 43% of are watching very closely. that's for the decided. for the undecided and the people who may or may not go to the polls, who aren't those people who every election make their way to the polling place, do we have a good take on what get them there? is it an issue? is it a phone call? what motivates them in the end? >> so there is evidence on one of the most effective way to move people to the polls. to some degree it's human contact. having somebody knock on your door. particularly talking to a friend, somebody you may know. that